EK-series
Video wall
www.gpodisplay.com
EK-series Video wall
29
Troubleshooting
Screen color is abnormal.
The operation does not work normally
.
Problem
Action
Screen has poorcolor depth
(16 colors).
y
Set the number of colors to more than 24 bits (true color). Select Control Panel
- Display - Settings - Color Table menu in Windows.
Screen color is unstable or
monochromatic
y
Check the connection status of the signal cable. Or, re-insert the PC graphicscard.
Do black spots appear on the screen?
y
Several pixels (red, green, white, or black color) may appear on the screen,
which can be attributed to the unique characteristics of the LCD panel. This is
not a malfunction of the LCD.
Problem
Action
Display suddenly powers off
y
Is the Timer set?
y
Check the DPMS Mode
y
Check the power control settings. Power interrupted.
CAUTION
•
Image sticking/image retention does not occur when using constantly changing images but may occur when using a fixed/static
image for an extended period of time. Therefore, it is recommended that you use the instructions below to decrease the likelihood
of image sticking occurring when displaying a static image. It is recommended that you change the screen content at least once
every
12 hours
at minimum. When done more frequently, the prevention of image sticking is moreeffective.
Recommended operating conditions
1) Change the background and the character colors using the abovementioned time interval.
When the LCD panel displays a static image for an extended period
of time, it can cause a voltage difference between the electrodes
that operate the liquid crystals. When the voltage difference
between the electrodes builds up over time, liquid crystals have a
tendency to remain aligned in one direction. During this process, a
previously displayed image remains visible. Thisphenomenon is
referred to as image sticking.
M
B
BM
BM
CF
CF
CF
OC
PI
Glass
Glass
LC
PI
TFT Layers
CF
ITO or MoTi Pixel Layer
What is image sticking?
2) Change the image using the abovementioned time interval
